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R410a PRACTICE TEST
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R410a PRACTICE TEST 2024- 2025 r410a - ANSWER HFC r22 - ANSWER HCFC 2500 psig - ANSWER a full nitrogen cylinder has a pressure of 610 +- 10 psig - ANSWER r410a high pressure switch will open at 50 psig - ANSWER r410a low pressure switch will open at 550-625 psig - ANSWER r410a ipr (internal pressure relief) switch will open at 800 psig - ANSWER r410a gage manifold hoses must be rated for 600 psig - ANSWER r410a filter driers must have a pressure rating up to 800 psig - ANSWER high pressure gage must have a rating up to bubble chart - ANSWER name the chart you would use with r407c, equipped with a txv (sub-cooling) dew chart - ANSWER name the chart you would use with r407c. equipped with a piston (super-heat) 500 - ANSWER when pulling a vacuum it must achieve how many microns 400 - ANSWER r410a recovery cylinders must have a rating of 2020 - ANSWER r22 production is supposed to phase out in which year esters - ANSWER r410a uses what type of oil rose - ANSWER whats the cylinder color for r410a smaller - ANSWER r410a metering devices are what compared to the ones used f or r22 125 degrees - ANSWER r410a cylinders should not be exposed to temperatures overThe benefits of buying summaries with Stuvia:
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